diff --git a/default.nix b/default.nix
index f8b6286..960d48d 100644
--- a/default.nix
+++ b/default.nix
@@ -6,4 +6,14 @@ let
 in
 with self; rec {
 
+  linux_5_9 = callPackage ./pkgs/linux/linux-5.9.nix {
+    kernelPatches = [
+      kernelPatches.bridge_stp_helper
+      kernelPatches.request_key_helper
+      kernelPatches.export_kernel_fpu_functions."5.3"
+    ];
+  };
+  linuxPackages_5_9 = recurseIntoAttrs (linuxPackagesFor linux_5_9);
+  linuxPackages_latest = linuxPackages_5_9;
+
 }
diff --git a/pkgs/linux/linux-5.9.nix b/pkgs/linux/linux-5.9.nix
new file mode 100644
index 0000000..9d9f1ea
--- /dev/null
+++ b/pkgs/linux/linux-5.9.nix
@@ -0,0 +1,18 @@
+{ stdenv, buildPackages, fetchurl, perl, buildLinux, modDirVersionArg ? null, ... } @ args:
+
+with stdenv.lib;
+
+buildLinux (args // rec {
+  version = "5.9.3";
+
+  # modDirVersion needs to be x.y.z, will automatically add .0 if needed
+  modDirVersion = if (modDirVersionArg == null) then concatStringsSep "." (take 3 (splitVersion "${version}.0")) else modDirVersionArg;
+
+  # branchVersion needs to be x.y
+  extraMeta.branch = versions.majorMinor version;
+
+  src = fetchurl {
+    url = "mirror://kernel/linux/kernel/v5.x/linux-${version}.tar.xz";
+    sha256 = "0wwa6557i9l4vyswz26ixz8c2ykxnzqrsc9pwkr76nyjx7gjibni";
+  };
+} // (args.argsOverride or {}))